Post and Print prints twice

we are getting a weird issue with the post + print CU.
On a sales order, we click on Post and Print button on the actions tab in the ribbon. It will print the document. THEN it will pull up the request page and then print again.

This is an upgrade from an older version of nav to Nav2017. We are using CUpdate 10 (I believe) and there is nothing that I can find in the CU80 or 82 that would trigger it to print twice.